Acknowledgements
The authors thank Dr Alain Ghesquière and Dr Vincent Vadez (IRD) for critical reading of our manuscript. MSN is supported by a PhD grant from the Sorghum and Millet Innovation Lab project (SMIL / Feed the Future) through the United States Agency for International Development (USAID, grant S19182.01). RB is supported by a BBSRC Discovery and Future Food Nottingham Research Fellowships. Work in our labs is supported by the IRD, the French Agence Nationale pour la Recherche (ANR Grant PlastiMil n°ANR20-CE20-0016, ICARUS n°ANR17-MPGA-0011 and RootAdapt n°ANR17-CE20-0022-01), the Royal Society (Anatomics grant ICA\R1\180356), the Access to Research Infrastructures activity in the Horizon 2020 Programme of the EU (EPPN2020 Grant Agreement 731013) and by the CGIAR Research Programme on Grain Legumes and Dryland Cereals (GLDC).